CN105464808B - Combustion and steam association system and its progress control method - Google Patents
Combustion and steam association system and its progress control method Download PDFInfo
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- CN105464808B CN105464808B CN201511034156.2A CN201511034156A CN105464808B CN 105464808 B CN105464808 B CN 105464808B CN 201511034156 A CN201511034156 A CN 201511034156A CN 105464808 B CN105464808 B CN 105464808B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Abstract
The present invention relates to a kind of combustion and steam association systems of offer and its progress control method, combustion and steam association system to include：Gas Generator Set, steam circuit, air preheater, fuel preheater, the part water supply heated by condensation water heater respectively enter air preheater and fuel preheater, and air preheater makes air themperature increase the air preheat into gas turbine；Fuel preheater is to the fuel preheating into gas turbine, fuel temperature is set to increase, air and fuel after heating enter gas turbine combustion acting, air and fuel combustion after heating is more stable, and the delivery temperature higher of gas turbine, the feedwater flow for increasing steam circuit at this time, makes the flue gas heat exchange of itself and the higher temperature of discharge of gas turbine obtain the quantity of steam of bigger, and the steam of greater flow is made to enter steam turbine acting.
Description
Technical field
The invention belongs to energy fields, and in particular to a kind of combustion and steam association system and its progress control method.
Background technology
The operating condition of combustion and steam association system adjusts in real time according to its load condition, due to the variation of load,
Combustion and steam association system tends not to generate electricity at full capacity, and combustion and steam association system is relatively inefficient when underload.
It is to increase the steam inlet condition of steam turbine to improve steam turbine to improve steam cycle efficiency main path at present
Mechanical efficiency, however, selection higher pressure and higher temperature steam turbine and waste heat boiler, at the beginning of having increased considerably power plant
Investment, payoff period is longer, either new-built unit or old Transformation of Unit, is all unfavorable for promoting.
Invention content
Based on this, the invention reside in overcoming the deficiencies of existing technologies, a kind of combustion and steam association system and its operation are provided
Control method, the thermal efficiency is high, and equipment manufacturing cost is low.
Its technical solution is as follows：
A kind of combustion and steam association system, including：Gas Generator Set, the Gas Generator Set include gas turbine；Steam circulation
Circuit, the steam circuit are equipped with waste heat boiler, steam turbine, condenser and condensation water heater, the waste heat
Residual heat flue is equipped in boiler, condensation water heater is installed in the residual heat flue, from the condensation water heater to described
Pipeline on the pipeline of waste heat boiler, on the pipeline of the condensation water heater or in the waste heat boiler is equipped with first
Pump mouth and the second pump mouth, from the condenser on the pipeline of the condensation water heater or the condensed water adds
The pipeline of hot device is equipped with the first water supplement port and the second water supplement port；Air preheater, the air preheater have phase interworking
The first heat exchanger channels and the second heat exchanger channels closed；Fuel preheater, the fuel preheater exchange heat with matched third
Channel and the 4th heat exchanger channels；Wherein, the residual heat flue is docked with the exhanst gas outlet of the gas turbine, first heat exchange
The import in channel is docked with first pump mouth, and the outlet of first heat exchanger channels is docked with first water supplement port, institute
The import for stating the second heat exchanger channels is docked with air-source, the outlets of second heat exchanger channels and the air of the gas turbine into
Mouth docking；Import, the outlet of the third heat exchanger channels are docked with second pump mouth, second water supplement port respectively, institute
The import for stating the 4th heat exchanger channels is docked with fuel gas source, the outlets of the 4th heat exchanger channels and the fuel of the gas turbine into
Mouth docking.
Flow valve is equipped between the condensation water heater and the air preheater in one of the embodiments,.
Regulating valve is equipped between the condensation water heater and the fuel preheater in one of the embodiments,.
The air intlet of the gas turbine is equipped with temperature sensor in one of the embodiments,；Or/and the combustion
The fuel inlet of gas-turbine is equipped with temperature sensor.
In one of the embodiments, on the flow of flue gas direction in the residual heat flue, the condensation water heater
For the most end first-class heat exchanger in the residual heat flue.
The temperature for entering the water supply of the air preheater from first pump mouth in one of the embodiments, is 70
DEG C to 90 DEG C；Alternatively, the temperature for entering the water supply of the fuel preheater from second pump mouth is 70 DEG C to 90 DEG C.
A kind of combustion and steam association system, including：Gas Generator Set, the Gas Generator Set include gas turbine；Steam circulation
Circuit, it is interior equipped with residual heat flue that the steam circuit is equipped with waste heat boiler, steam turbine, the waste heat boiler；Waste heat
Heat exchanger, air preheater and fuel preheater, the air preheater have mutually matched first heat exchanger channels and the
Two heat exchanger channels, the fuel preheater have matched third heat exchanger channels and the 4th heat exchanger channels；Wherein, the waste heat
Flue is docked with the exhanst gas outlet of the gas turbine, and the residual heat flue is docked with the exhanst gas outlet of the gas turbine, institute
State the first heat exchanger channels, the third heat exchanger channels are docked with the afterheat heat exchanger respectively, second heat exchanger channels and institute
The air intlet docking of gas turbine is stated, the 4th heat exchanger channels are docked with the fuel inlet of the gas turbine.
At least level-one steam circulation heat exchanger, institute are additionally provided in the steam circuit in one of the embodiments,
Steam circulation heat exchanger is stated to be installed in the residual heat flue, it is described remaining on the flow of flue gas direction in the residual heat flue
Heat exchanger is located at the downstream of steam circulation heat exchanger described in most end level-one.
A kind of combustion and steam association system progress control method, including：Fuel and air enter burning in gas turbine and do
Work(, the flue gas after acting enters the residual heat flue of waste heat boiler, and is heated to the water supply of steam circuit, and water supply adds
Enter steam turbine acting after heat as vapor, the vapor after acting enters condenser and is condensed into water supply, and water supply is passed through
Condensation water heater is back to waste heat boiler；Water, which is given, in the middle part of condensation water heater enters air preheater from the first pump mouth
In first heat exchanger channels, the air in the second heat exchanger channels of air heat exchanger is preheated, air is warmed, water supply drop
Temperature, the air after heating enter gas turbine combustion, and the water supply after cooling is back to condensation water heater from the first water supplement port；It is solidifying
It bears water and gives water out of, the second pump mouth enters fuel preheater third heat exchanger channels in the middle part of heater, to fuel heat exchangers
Fuel in 4th heat exchanger channels is preheated, and fuel is warmed, and water supply cooling, the fuel after heating enters gas turbine combustion
It burns, the water supply after cooling is back to condensation water heater from the second water supplement port.
The temperature of air at the gas turbine air intake detected in one of the embodiments, according to temperature sensor
Degree adjusts flow valve, and control enters the feedwater flow of air preheater from the first pump mouth, to control into gas turbine
The temperature of air；Alternatively, the temperature of the gas turbine fuel inlet fuel detected according to temperature sensor, is adjusted
Valve, control enters the feedwater flow of fuel preheater from the second pump mouth, to control the temperature into the fuel of gas turbine.
The beneficial effects of the present invention are：
The part water supply heated by condensation water heater respectively enters air preheater and fuel preheater, air preheat
Device makes air themperature increase the air preheat into gas turbine；Fuel preheater to enter gas turbine fuel preheating,
Fuel temperature is set to increase, the air and fuel after heating enter gas turbine combustion acting, the air after heating and fuel combustion
It is more stable, and the delivery temperature higher of gas turbine, increase the feedwater flow of steam circuit at this time, makes itself and combustion gas wheel
The flue gas heat exchange of the higher temperature of machine discharge obtains the quantity of steam of bigger, and the steam of greater flow is made to enter steam turbine acting.
Steam at this time maintains original steam pressure and temperature to wait steam operating parameter constant substantially, these more steam enter steam
Turbine acting obtains the output of bigger, improves the efficiency of entire combustion and steam association system.Also, condensation water heater is installed on
In residual heat flue, since extraction section water supply enters air preheater from condensation water heater, given in condensation water heater
The flow of water increases relative to the steam circuit feedwater flow for being not provided with air preheater, so that condensed water heats
The heat that device is exchanged with flue gas in residual heat flue increases, and the exhaust temperature of flue gas reduces, and improves the heat of entire combustion and steam cycle
Efficiency.On the other hand, air preheater does not change the steam operating parameter of steam circuit, need not use heat resisting and pressure resisting
Better material avoids greatly improving the cost of whole system while improving the thermal efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the combustion and steam association system of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the combustion and steam association system of the embodiment of the present invention two.
Reference sign：
100, gas turbine, 210, waste heat boiler, 211, residual heat flue, 220, steam turbine, 230, condenser, 231, solidifying
Bear water pump, 240, condensation water heater, 300, afterheat heat exchanger, 310, air preheater, 320, flow valve, 410, fuel preheating
Device, 420, regulating valve.
Specific implementation mode
Invention is further described in detail below, and embodiments of the present invention are not limited thereto.
Embodiment one
As shown in Figure 1, combustion and steam association system, including：Gas Generator Set, steam circuit, air preheater 310,
And fuel preheater 410, Gas Generator Set include gas turbine 100, gas turbine 100 have fuel gas inlet, air intlet, with
And exhanst gas outlet；Steam circuit is equipped with waste heat boiler 210, steam turbine 220, condenser 230 and condensed water heating
Device 240, waste heat boiler 210 is interior to be equipped with residual heat flue 211, and condensation water heater 240 is installed in residual heat flue 211, from condensation
On water heater 240 to the pipeline of waste heat boiler 210 or on the pipeline of condensation water heater 240 or waste heat boiler 210
Interior pipeline is equipped with the first pump mouth and the second pump mouth, from condensation water heater 240 to the pipeline of waste heat boiler 210
Pipeline on the upper or pipeline of condensation water heater 240 or in waste heat boiler 210 is equipped with the first water supplement port, Yi Ji
Two water supplement ports；Air preheater 310 has mutually matched first heat exchanger channels and the second heat exchanger channels；Fuel preheater 410
With matched third heat exchanger channels and the 4th heat exchanger channels；Wherein, residual heat flue 211 and the flue gas of gas turbine 100 go out
Mouth docking, the import of the first heat exchanger channels are docked with the first pump mouth, and the outlet of the first heat exchanger channels is docked with the first water supplement port,
The import of second heat exchanger channels is docked with air-source, and the outlet of the second heat exchanger channels is docked with the air intlet of gas turbine 100；
Import, the outlet of third heat exchanger channels are docked with the second pump mouth, the second water supplement port respectively, the import and combustion of the 4th heat exchanger channels
Air source docks, and the outlet of the 4th heat exchanger channels is docked with the fuel inlet of gas turbine 100.
Preferably, it is equipped with condensate pump 231 in the downstream of condenser 230, condensate pump 231 is located at condenser 230 and coagulates
Between bearing water heater 240, first water supplement port and second water supplement port add set on condensate pump 231 with condensed water
Between hot device 240.
The part water supply heated by condensation water heater 240 respectively enters air preheater 310 and fuel preheater
410, air preheater 310 makes air themperature increase the air preheat into gas turbine 100；Fuel preheater 410 into
The fuel preheating for entering gas turbine 100, makes fuel temperature increase, and the air and fuel after heating enter the burning of gas turbine 100
Acting, the air and fuel combustion after heating are more stable, and the delivery temperature higher of gas turbine 100, increase steam at this time
The feedwater flow of circulation loop makes the flue gas heat exchange of its higher temperature discharged with gas turbine 100 obtain the quantity of steam of bigger,
The steam of greater flow is set to enter the acting of steam turbine 220.Steam at this time maintains original steam pressure and temperature to wait steaming substantially
Automotive row parameter constant, these more steam enter the output that the acting of steam turbine 220 obtains bigger, improve entire combustion gas and steam
The efficiency of vapour association system.Also, condensation water heater 240 is installed in residual heat flue 211, due to from condensation water heater
Extraction section water supply enters air preheater 310 in 240, and the flow of water supply is relative to being not provided in condensation water heater 240
The steam circuit feedwater flow of air preheater 310 increases, so that condensation water heater 240 and residual heat flue 211
The heat that interior flue gas exchanges increases, and the exhaust temperature of flue gas reduces, and improves the thermal efficiency of entire combustion and steam cycle.Another party
Face, air preheater 310 do not change the steam operating parameter of steam circuit, need not use the better material of heat resisting and pressure resisting
Material, avoids greatly improving the cost of whole system while improving the thermal efficiency.
Flow valve 320 is equipped between first pump mouth and air preheater 310.Air can be controlled by adjusting flow valve 320
Feedwater flow on preheater 310 to adjust the heat exchange amount of air and water supply in air preheater 310, and then adjusts and enters
The temperature of the air of gas turbine 100.Second pump mouth is equipped with regulating valve 420 with fuel preheater 410.Adjust regulating valve 420
The feedwater flow that fuel preheater 410 can be controlled, to adjust the heat exchange amount of fuel and water supply in fuel preheater 410, into
And adjust the temperature into the fuel of gas turbine 100.As needed, flow valve 320 or regulating valve 420 can be separately provided,
Flow valve 320 and regulating valve 420 can also be set simultaneously, and combine regulating flow valve 320 and regulating valve 420, fired so as to enter
The temperature of the fuel and air of gas-turbine 100 is in efficiency optimization value.
The air intlet of gas turbine 100 is equipped with temperature sensor；Or/and the fuel inlet of gas turbine 100 is equipped with temperature
Spend sensor.The air intlet of gas turbine 100, fuel inlet are equipped with temperature sensor in the present embodiment, but not limited to this,
As needed, can temperature sensor individually be set in the air intlet of gas turbine 100 or fuel inlet.Combustion and steam is combined
System also have controller, be set to the air intlet of gas turbine 100, the temperature sensor of fuel inlet, flow valve 320,
And regulating valve 420 is electrically connected with controller, controller according to temperature sensor detect into gas turbine 100
Fuel temperature, air themperature, adjust flow valve 320, regulating valve 420, and control enters air preheater 310 from the first pump mouth
Feedwater flow, the feedwater flow for entering fuel preheater 410 from the second pump mouth, to control into gas turbine 100
Air themperature, fuel temperature.Temperature, the temperature of air into the fuel of gas turbine 100 are influenced by environment temperature, with ring
The variation of border temperature and change, the temperature of fuel of gas turbine 100, the temperature of air will be entered as controlling signal：Work as temperature
When degree sensor detects that the air temperature value of 100 air intlet of gas turbine is greater than the set value, controller controls flow valve 320
Reduce the feedwater flow into air preheater 310, that is, reduces the feedwater flow to exchange heat with air, the heat for making air obtain
Amount reduces, to reduce the temperature that air enters gas turbine 100；Conversely, when temperature sensor detects that gas turbine 100 is empty
When the air temperature value of gas import is less than setting value, controller controls water supply of the increase of flow valve 320 into air preheater 310
Flow increases the feedwater flow to exchange heat with air, so that the heat that air obtains is increased, enter combustion gas to improve air
The temperature of turbine 100；It adjusts repeatedly, it is final so that the air temperature value of 100 air intlet of gas turbine reaches theoretical meter
Calculation makes the highest set temperature value of combustion and steam association system efficiency；When temperature sensor detect 100 fuel of gas turbine into
When the Fuel Temperature values of mouth are greater than the set value, controller controls to adjust valve 420 and reduces into fuel preheater 410 to flow
Amount reduces the feedwater flow to exchange heat with fuel, so that the heat that fuel obtains is reduced, enter combustion gas wheel to reduce fuel
The temperature of machine 100；Conversely, when temperature sensor detects that the Fuel Temperature values of 100 fuel inlet of gas turbine are less than setting value
When, controller controls to adjust the increase of valve 420 into the feedwater flow of fuel preheater 410, i.e. increase exchanges heat with fuel
Feedwater flow makes the heat that fuel obtains increase, to improve the temperature that fuel enters gas turbine 100；It adjusts repeatedly,
It is final that the Fuel Temperature values of 100 fuel inlet of gas turbine is made to reach theoretical calculation and make combustion and steam association system efficiency highest
Set temperature value.Joint reconciles flow valve 320, regulating valve 420, reconciles fuel temperature, Air Temperature into gas turbine 100
Degree makes Combined cycle gas-steam turbine unit obtain optimum efficiency, and Combined cycle gas-steam turbine unit is in any operating mode of arbitrary season
Under, it can be run, not influenced by extraneous objective factor with optimum state.
On flow of flue gas direction in residual heat flue 211, condensation water heater 240 is the most end in residual heat flue 211
First-class heat exchanger.Enter from the first pump mouth the water supply of air preheater 310 temperature be 70 DEG C to 90 DEG C, preferably 80
DEG C or 85 DEG C；Alternatively, the temperature for entering the water supply of fuel preheater 410 from the second pump mouth is 70 DEG C to 90 DEG C, preferably
80 DEG C or 85 DEG C.The steady energy in the ground of flue gas in residual heat flue 211 is made full use of, to improve combustion and steam association system
The thermal efficiency.Also, steam circuit utilizes high-grade energy, avoids having an impact the steam parameter of steam circuit.
Combustion and steam association system progress control method, including：
A, fuel and air enter work by combustion in gas turbine 100, and the flue gas after acting enters the remaining of waste heat boiler 210
Heating flue 211, and the water supply of steam circuit is heated, the water supply after heating becomes vapor and enters steam turbine
220 actings, the water supply (becoming vapor phase at this time) after acting passes through condenser 230 successively and condensation water heater 240 returns
It is flow to waste heat boiler 210, the wherein water supply of vapor phase is condensed into liquid in condenser 230；
Give the first heat exchanger channels that water enters air preheater 310 from the first pump mouth in 240 middle part of condensation water heater
It is interior, the air in the second heat exchanger channels of air heat exchanger 310 is preheated, air is warmed, water supply cooling, after heating
Air enters the burning of gas turbine 100, and the water supply after cooling is back to condensation water heater 240 from the first water supplement port；
Give the third heat exchanger channels that water enters fuel preheater 410 from the second pump mouth in 240 middle part of condensation water heater
It is interior, the fuel in the 4th heat exchanger channels of fuel heat exchangers 410 is preheated, fuel is warmed, water supply cooling, after heating
Fuel enters the burning of gas turbine 100, and the water supply after cooling is back to condensation water heater 240 from the second water supplement port.
B, the temperature of air at 100 air intake of gas turbine detected according to temperature sensor, adjusts flow valve
320, control enters the feedwater flow of air preheater 310 from the first pump mouth, to control the air into gas turbine 100
Temperature；Alternatively, at 100 fuel inlet of gas turbine detected according to temperature sensor fuel temperature, adjust regulating valve
420, control enters the feedwater flow of fuel preheater 410 from the second pump mouth, to control the fuel into gas turbine 100
Temperature；Or it the temperature of air at 100 air intake of gas turbine detected according to temperature sensor, is fired at fuel inlet
The temperature of material, while flow valve 320 and regulating valve 420 are adjusted, to obtain optimum efficiency.
Embodiment two
Embodiment two and embodiment one difference lies in：
As shown in Fig. 2, combustion and steam association system, including：Gas Generator Set, steam circuit, warm-up cycle circuit, combustion
Mechanism of qi group includes gas turbine 100；Steam circuit is equipped in waste heat boiler 210, steam turbine 220, waste heat boiler 210
Equipped with residual heat flue 211, warm-up cycle circuit is equipped with afterheat heat exchanger 300, air preheater 310 and fuel preheater
410, there are air preheater 310 mutually matched first heat exchanger channels and the second heat exchanger channels, fuel preheater 410 to have phase
The third heat exchanger channels and the 4th heat exchanger channels of cooperation；Wherein, residual heat flue 211 is docked with the exhanst gas outlet of gas turbine 100,
First heat exchanger channels, third heat exchanger channels are docked with afterheat heat exchanger 300 respectively, the second heat exchanger channels and gas turbine 100
Air intlet docks, and the 4th heat exchanger channels are docked with the fuel inlet of gas turbine 100.
The cycle fluid heated by afterheat heat exchanger 300 respectively enters air preheater 310 and fuel preheater 410,
Air preheater 310 makes air themperature increase the air preheat into gas turbine 100；Fuel preheater 410 is fired to entering
The fuel preheating of gas-turbine 100, makes fuel temperature increase.It is changed with waste heat after 410 parallel connection of air preheater 310 and fuel preheater
Hot device 300 is connected, and two closed cycles are constituted, efficient without loss of steam and water.
At least level-one steam circulation heat exchanger is additionally provided in steam circuit, steam circulation heat exchanger is installed on waste heat cigarette
In road 211, on the flow of flue gas direction in residual heat flue 211, afterheat heat exchanger 300 is located at the heat exchange of most end level-one steam circulation
The downstream of device, in the present embodiment, most end level-one steam circulation heat exchanger is condensation water heater 240, and afterheat heat exchanger 300 is located at
Condense the downstream of water- to-water heat exchanger.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
Only several embodiments of the present invention are expressed for above example, the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of combustion and steam association system, which is characterized in that including：
Gas Generator Set, the Gas Generator Set include gas turbine；
Steam circuit, the steam circuit add equipped with waste heat boiler, steam turbine, condenser and condensed water
Hot device, the waste heat boiler is interior to be equipped with residual heat flue, and condensation water heater is installed in the residual heat flue, from the condensed water
On heater to the pipeline of the waste heat boiler or on the pipeline of the condensation water heater or in the waste heat boiler
Pipeline be equipped with the first pump mouth and the second pump mouth, from the condenser on the pipeline of the condensation water heater,
Or the pipeline of the condensation water heater is equipped with the first water supplement port and the second water supplement port；
Air preheater, the air preheater have mutually matched first heat exchanger channels and the second heat exchanger channels；
Fuel preheater, the fuel preheater have matched third heat exchanger channels and the 4th heat exchanger channels；
Wherein, the residual heat flue is docked with the exhanst gas outlet of the gas turbine, the import of first heat exchanger channels and institute
The docking of the first pump mouth is stated, the outlet of first heat exchanger channels is docked with first water supplement port, second heat exchanger channels
Import docked with air-source, the outlet of second heat exchanger channels is docked with the air intlet of the gas turbine；
The imports of the third heat exchanger channels, outlet are docked with second pump mouth, second water supplement port respectively, and described the
The import of four heat exchanger channels is docked with fuel gas source, the fuel inlet pair of the outlet and the gas turbine of the 4th heat exchanger channels
It connects；
The air intlet of the gas turbine is equipped with temperature sensor；Or/and the fuel inlet of the gas turbine is equipped with temperature
Sensor；Flow valve is equipped between the condensation water heater and the air preheater；The condensation water heater with it is described
Regulating valve is equipped between fuel preheater；
It is equipped with condensate pump in the downstream of the condenser, the condensate pump is located at the condenser and is heated with the condensed water
Between device, first water supplement port and second water supplement port be set to the condensate pump and the condensation water heater it
Between.
2. combustion and steam association system according to claim 1, which is characterized in that the flue gas stream in the residual heat flue
On dynamic direction, the condensation water heater is the most end first-class heat exchanger in the residual heat flue.
3. combustion and steam association system according to claim 1 or 2, which is characterized in that enter from first pump mouth
The temperature of the water supply of the air preheater is 70 DEG C to 90 DEG C；Alternatively, entering the fuel preheating from second pump mouth
The temperature of the water supply of device is 70 DEG C to 90 DEG C.
4. a kind of combustion and steam association system progress control method, which is characterized in that including：
Fuel and air enter work by combustion in gas turbine, and the flue gas after acting enters the residual heat flue of waste heat boiler, and
The water supply of steam circuit is heated, enters steam turbine acting after water supply heating as vapor, after acting
Vapor enters condenser and is condensed into water supply, and water supply is back to waste heat boiler by condensation water heater；
Water is given out of, the first pump mouth enters air preheater the first heat exchanger channels in the middle part of condensation water heater, and air is changed
Air in second heat exchanger channels of hot device is preheated, and air is warmed, and water supply cooling, the air after heating enters combustion gas wheel
Machine burns, and the water supply after cooling is back to condensation water heater from the first water supplement port；
Water is given out of, the second pump mouth enters fuel preheater third heat exchanger channels in the middle part of condensation water heater, and fuel is changed
Fuel in 4th heat exchanger channels of hot device is preheated, and fuel is warmed, and water supply cooling, the fuel after heating enters combustion gas wheel
Machine burns, and the water supply after cooling is back to condensation water heater from the second water supplement port；
The temperature of air at the gas turbine air intake detected according to temperature sensor adjusts flow valve, controls from first
Pump mouth enters the feedwater flow of air preheater, to control the temperature into the air of gas turbine；Alternatively, according to temperature
The temperature for the gas turbine fuel inlet fuel that sensor detects, adjusts regulating valve, and control enters combustion from the second pump mouth
The feedwater flow for expecting preheater, to control the temperature into the fuel of gas turbine.
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| CN105971736A (en) * | 2016-07-01 | 2016-09-28 | 陈梦娜 | Air inlet temperature adjusting system for gas turbine |
| CN108679587A (en) * | 2018-05-11 | 2018-10-19 | 中国成达工程有限公司 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
| CN112943454A (en) * | 2021-03-10 | 2021-06-11 | 上海电力大学 | Waste heat utilization system of gas turbine |
| CN114837818A (en) * | 2022-04-18 | 2022-08-02 | 中国联合重型燃气轮机技术有限公司 | Gas turbine system and power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1884640A1 (en) * | 2006-08-04 | 2008-02-06 | Siemens Aktiengesellschaft | Method of operation of a gas turbine plant, control device and a gas and steam turbine plant |
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| US5357746A (en) * | 1993-12-22 | 1994-10-25 | Westinghouse Electric Corporation | System for recovering waste heat |
| DE19512466C1 (en) * | 1995-04-03 | 1996-08-22 | Siemens Ag | Steam generator operating method for gas and steam turbine plant |
| US8505309B2 (en) * | 2011-06-14 | 2013-08-13 | General Electric Company | Systems and methods for improving the efficiency of a combined cycle power plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1884640A1 (en) * | 2006-08-04 | 2008-02-06 | Siemens Aktiengesellschaft | Method of operation of a gas turbine plant, control device and a gas and steam turbine plant |
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